Wednesday, June 1, 2011

Cisco Router Commands Bail Me Out of BGP Issue

When I got to work this morning I was hearing the all to frequent "Internet is down."
My first knee-jerk reaction to this question is always "Does Al Gore know about this?" I digress. Email confirmed that our carrier had opened a ticket on our circuits (we have 2 T1's in a bundle) because they noticed an issue with an upstream DS3 card and replaced it. The ticket comments said they saw both circuits testing clean. Anyway, a quick console into our Cisco router showed me some interesting info...

"Zoiks!!! Carrier hasn't programmed their side of the circuit to advertise BGP info. Quick, to the Bat-phone, time to call the carrier. These simple commands can show you a wealth of information if you just slow down and look. Hope this helped!

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